颞下颌关节紊乱病的MRI观察

MR imaging of temporomadibular joint dysfunction

目的 应用核磁共振技术 (MRI)检查颞下颌关节紊乱病 (TMD)。方法 观察 6 1例颞下关节紊乱病患者的关节盘 (Disc)位置和形态改变 ,并对照出现的临床表现进行分析 ,以探讨在诊断中的意义。结果 显示在所有TMD患者的关节中 ,86 .8%有Disc前移位 ;80 .9%有Disc形态改变 ;伴关节弹响、张口受限、关节破碎音或磨擦音等症状的关节中 ,MRI也显示Disc和髁突有不同程度的改变。结论 MRI是一种有前途的颞下颌关节紊乱病诊断方法。

Objective To investigate the magnetic resonance imaging(MRI) of the temporomandibular joint dysfunction(TMD). Methods We examined 68 suffered joints of 61 TMD patients by MRI and observed the placement and shape of the disc. Results MR imaging depicted anterior disc displacement in 86.8% of the symptomatic joints and shape changing in 80.9% of the joints.The disc and condylar have different in the joints with different symptoms. Conclusion MRI is one of the effective examing ways of the diagnosis of TMD.